Joe is driving from his home in Alpha to a city down the Interstate 200 miles away where the Alpha Lions have a football game. The route is not a straight line, however. He will drive west for 120 miles, then south for 60 miles, then east for the last 20 miles.
However, Joe's roommate Pete does not believe the Interstate is the way to go, since the distance from Alpha to the game is fewer miles by regular highway and city streets than by the Interstate. Pete knows he cannot drive quite as fast, but believes he can get to the game quicker going his direct route.
Joe thinks Pete is overly optimistic, reminding him of the stop lights, school zones and traffic along the way that will slow him down.
If Joe averages 60 mph on the Interstate, what will be Pete's average speed have to be to make good on his goal of being at least as quick to the game as Joe?
Assume that Pete's route is a straight line from Alpha to the game. Tell me how you did the calculation.
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